Machine attached button



F. G. PURINTON MACHINE ATTACHED BUTTON Filed Aug. 6, 1952 0 0000 00 0 0 0 0 0 0 wwwvvvwmwwwwfi0vu .0. 0 0 0 0 0 0 0 0 00 0 000 1 M! 000 0;: 1 0 0 000 000 0 00 0 $0.00.... 1 0 0 0 0 00 0 0 0 0 0 0 00 aaw vvw wwvvw a 0 000 0 INVEN TOR. FORREST G. PUP/N TON A TTO/QNE Y5 Patented Aug. 25 1953 UNITED STATES ATENT OFFICE MACHINE ATTACHED BUTTON Application August 6, 1952, Serial No. 302,875

3 Claims.

This invention relates to buttons and pertains more particularly to a machine attached button in which portions thereof confront under compression both sides of the fabric to which the button is to be attached.

One important object of the invention is to provide a heavy duty button that is economical to manufacture, constructed of few parts and which will effectively resist detachment from the fabric to which it is secured.

Another object of the invention is to provide a button in which the gripping action is distributed over a relatively large area of the fabric.

A further object of the invention is to provide a button of lightweight construction that can readily be fabricated from relatively thin gauge sheet stock.

A further object of the invention is to eliminate the necessity of incorporating into the head thereof an anvil as is required in the well-known tack type of button.

Other objects will be in part obvious, and in part pointed out more in detail hereinafter.

The invention accordingly consists in the features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereafter set forth and the scope of the application of which will be indicated in the appended claims.

In the drawing:

Fig. 1 is a plan view of the button attached to a piece of fabric;

Fig. 2 is an elevational view, partly in section, showing the parts of the anchor member just prior to attachment to a piece of fabric;

Fig. 3 is a sectional view taken in the direction of line 3-3 of Fig. 1;

Fig. 4 is a bottom view of the button; and

Fig. 5 is a perspective view of the two individual button parts depicted in Fig. 2.

Referring to the drawings, wherein one embodiment of the invention is illustrated, the button comprises a head A and an anchor member B by means of which the head is secured to a fabric C such, for example, as the material of which overalls, work shirts, etc. are made.

The head A is formed of two pieces, namely, a cap I2 and a body member l3. The body member has a dished flange portion I4 provided with a depending tubular shank l5 which terminates at its lower end in a generally laterally extending flange It. This flange is transversely curved outwardly and upwardly so as to provide in its upper surface an annular groove [1 extending around the base of the shank. The cap is in the form of a round, somewhat domed disc with its edges bent around the edges of the portion M of the body member. It will be seen that the head comprises only two parts, each of which is composed of sheet metal, and these parts can be very easily manufactured and assembled by simple operations.

The anchor member B, shown in Figs. 2 and 4, comprises a ring 20 provided with attaching prongs 2| and intervening backing prongs 23 extending from the inner edge of the ring. The outer peripheral portion of the ring is curved upwardly so that the under side of the ring presents a ringlike surface convex in cross section. The prongs 2| are circumferentially spaced apart and extend upwardly. These prongs are tapered and their outer ends are V-shaped or pointed so as to provide piercing points 22 which may be pushed through the piece of fabric C to which the button is to be attached. The backing prongs alternate with the piercing prongs and the backing prongs extend inwardly towards the center of the ring but are slightly curved upwardly. It is clear that the anchor member B may be very readily formed by simple stamping and bending operations. The attaching prongs are of such length that during the stamping operation these prongs extend to the center of the anchor member. The backing prongs are shorter than the attaching prongs and they are of generally V-shape. Thus, the ring may be stamped from the disc and the disc simultaneously slit through the center so as to form the prongs. The prongs may be bent into the position shown in Fig. 2.

In attaching the parts of the button to the fabric C, the head and the anchor member are positioned at opposite sides of the fabric in proper alignment and then these parts are relatively forced towards each other so that the attaching prongs 2i pierce the fabric, and the fabric between the bottom surface of the flange l6 and the top surfaces of the backing prongs is compressed. The end portions of the prongs 2| are then, by means of suitable dies, curled or rolled inwardly and downwardly as shown in Fig. 3. During this operation the backing prongs are drawn towards the flange Hi. It will be observed from Fig. 3 that the upstanding portions of the attaching prongs 2! are in engagement with the rim or periphery of the flange l6, and the ends of these prongs engage within the groove I! of the flange I6, thus providing a very secure attachment between the head A and the anchor B whereby these parts are held against movement relative to one another. The underside of the ring 20, being curvdescription or shown in the accompanying drawings shall be interpreted as illustratiige an d not in a limiting sense.

It is also to be understoqdithat theqangua e used in the following claimsisimaendeditct-cover all of the generic and specific featureseflthe-invention herein described EIHd|1 1i II BAEQIELQtS Q the scope of the invention which, as a matter oflanguage, might be said to fall therebetweeri.

I claim as my invention:

A b to -s the-ch racte ins ribe em p isinaahe eihavina e ptQvi-de a ts te'h er end-with, ou ardl tending; flange, the bott mesur eae ze -a deete at cent-rent one side of, the v iCIlgthEQhliifiOI-hifififl be a a heda h e eeeelee .zmembe h vi ring provided with integral baclging portions ex n n e nw rl l item 2 i inn ed Pierso fronting: the ,oppos ite side; the material; xsaid ring also having.spaced apaeg gal attaching p -e n i 29 1 t .3 535 es tic aboutusai dlflange and ha rig; their upper ends curled war w etd rs i han a d n wat l lat -en a men w e a ze iaee t r-se curin thetpartatgseteer l A lbuttq .Q eih esh aete e escr bed: -.co.mpr sinegashe taieeta hee a end epe din hollow shank provided at its lower end with an outwardly extending flange, the bottom of which flange is adapted to confront one side of the material to which the button is attached, and a sheet metal anchor member having a ring provided with integral prongs extending inwardly from its inner edge for confronting the opposite side of the material, saidrin'g having;spaced;aart iiitegral attachi-ng prongs extending upwardly 'frornits inner edge, positioned about said flange and having their upper ends curved inwardly and downward- .ly to previ de rolled portions engaging the upper surface of said flange for securing the parts to- .vg'eth'err I A--buttoircf-the character described comprising a sheet metal head having a depending -tulgulansh anlg proyided at its lower end with an outwardly extending, upwardly curved flange with agroove in its upper surface, a sheet metal anchor member comprising a ring provided with integralbacleing prongs:- extending in spaced apart relation Ward y-trem-th i in t ede e th rin said ringalsohaving integral attaching prongs locatectbetweensaid backing prongs a-ri d vextending upwardly from the inner edge of said rin and positio ned about saidflange; the upper ends of i -atta h n pro g being curled inwar oward the shank and downwardly to provide rolled pastim en a in h 9 ?i2h gr ve: securing the head andanchor me'nriber; 1 0 ther with the naterial to which' the button isto-r be attaehed compressed betweenthe lower surface of the flange and the: top surfaces of said.- backing prongs;

- manner PURINTQN:

No references cited; 

